Just like so many things in Starfield, the inventory management and navigation can feel super clunky when you are first starting out. Swapping weapons, armor, or just using a medpack after taking a few too many shots can feel unruly when you have to go into the Start Menu, select the Inventory, navigate to the right section, and then find the item you need. The entire experience may be disheartening when you are first starting out that you may quickly feel yourself growing frustrated.
Starfield: How To Use The Favorites Menu
If you want to quickly access items in Starfield, using the favorites menu can be a huge help.